Hidden folders in filezilla?

hey guys i was wondering if you can hide a fold in filezilla and if so how would you un hide it?

like im trying to edit the header for my site there's no header.php
i look into the index.php and it says the header and footer or in a folder called inc

but i look through everything and theres no inc folder anywhere

 

If you are sharing the root folder of a drive under XP, it lists several hidden folders.